@inproceedings{CIG-2007-Ashlock,
	author        = "Daniel A. Ashlock",
	booktitle     = "{Proceedings of the Third Symposium on Computational Intelligence and Games}",
	doi           = "10.1109/CIG.2007.368078",
	isbn          = "1-4244-0709-5",
	pages         = "48--55",
	publisher     = "{IEEE}",
	title         = "{Cooperation in Prisoner's Dilemma on Graphs}",
	year          = 2007,
}